About AI PDF Question Answering & Semantic Passage Finder
In-memory semantic passage retrieval for PDF documents. Query contracts, financial reports, or research papers and instantly receive the most relevant passages with exact page citations and relevance scores.
Key Capabilities & Features
- Direct high-fidelity PDF text extraction across all pages using PDF.js (pdfjs-dist)
- BM25 semantic passage ranking matching questions against document paragraphs
- Identifies and displays exact page number citations for every matched passage
- Highlights matched query keywords within retrieved text snippets
- Export Q&A passage citations directly to Microsoft Word (.DOCX) and text
- Completely private: contracts and confidential PDFs never leave your machine
How to Use AI PDF Question Answering & Semantic Passage Finder
Load Document or Text
Paste document text or load a PDF document.
Ask a Question
Type any natural question regarding dates, policies, or figures.
Review Citations
Examine the retrieved passages ranked by match score with page numbers.
Privacy & In-Browser Execution Guarantee
100% Client-Side. PDF files and private questions are parsed in browser memory with zero server calls.
Frequently Asked Questions
Does this use an external Large Language Model (LLM)?
No. This tool operates 100% client-side using in-memory BM25 semantic information retrieval, ensuring total privacy and instantaneous passage extraction without server costs.
How accurate are the page number citations?
The engine parses text using PDF.js across each individual page stream, providing exact page-level citations for every retrieved passage.
Can I upload sensitive legal contracts or financial audits?
Yes! All PDF parsing and passage scoring execute strictly inside your local browser memory. Zero bytes leave your machine.